What is HPOstr05.exe?

The .exe extension on a filename indicates an executable file. Executable files may, in some cases, harm your computer. Therefore, please read below to decide for yourself whether the HPOstr05.exe on your computer is a Trojan that you should remove, or whether it is a file belonging to the Windows operating system or to a trusted application.

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HPOstr05.exe file information

The process known as Main Executable belongs to software HP OfficeJet T Series or HP OfficeJet Series (version 700) by Hewlett-Packard Co (

Description: HPOstr05.exe is not essential for Windows and will often cause problems. The file HPOstr05.exe is located in a subfolder of "C:\Program Files". The file size on Windows 10/8/7/XP is 1,175,552 bytes. 
HPOstr05.exe is not a Windows core file. The program is not visible. The process starts upon Windows startup (see Registry key: MACHINE\User Shell Folders, User Shell Folders). HPOstr05.exe is able to record keyboard and mouse inputs. Therefore the technical security rating is 50% dangerous; however you should also read the user reviews.

Uninstalling this variant: It is possible to uninstall the program using the Control Panel ⇒ Uninstall a ProgramHP OfficeJet T Series or HP OfficeJet Series 700.

Recommended: Identify HPOstr05.exe related errors

External information from Paul Collins:

Important: Some malware camouflages itself as HPOstr05.exe, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the HPOstr05.exe process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.


User Comments

this file is related to HP printers, personally i have a HP OfficeJet 610. It is annoying on startup when it connects to the printer and does all sorts of checks.
  Kain Racure  
HPOstr05.exe can most often be identified as malicious programming if it begins to take up mass amounts of cpu usage. This is most easily identifiable if your computer slows down and windows task manager says that the task is taking up past 85% of your cpu
  Matt Rothmeyer  
Hp OfficeJet Software für die Serie XXX z.B.: 700 zum printen scan, faxen, einstellung des Multifunktionsgerätes
  Neosky   (further information)

Summary: Average user rating of HPOstr05.exe: based on 3 votes with 3 user comments. One user thinks HPOstr05.exe is essential for Windows or an installed application. 2 users think it's neither essential nor dangerous.

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Best practices for resolving HPOstr05 issues

A clean and tidy computer is the key requirement for avoiding problems with HPOstr05. This means running a scan for malware, cleaning your hard drive using 1cleanmgr and 2sfc /scannow, 3uninstalling programs that you no longer need, checking for Autostart programs (using 4msconfig) and enabling Windows' 5Automatic Update. Always remember to perform periodic backups, or at least to set restore points.

Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the 6resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off repairing of your installation or, for Windows 8 and later versions, executing the 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the HPOstr05.exe process on your computer, the following programs have proven to be helpful: ASecurity Task Manager displays all running Windows tasks, including embedded hidden processes, such as keyboard and browser monitoring or Autostart entries. A unique security risk rating indicates the likelihood of the process being potential spyware, malware or a Trojan. BMalwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

HPOstr05.exe [all]